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Oct. 18, 1995
 
STATUS REPORT : S-19951018
 
 
KENNEDY SPACE CENTER SPACE SHUTTLE STATUS REPORT
 
 
WEDNESDAY, OCTOBER 18, 1995 (11:52 AM EDT)

LAUNCH - 2 DAYS

MISSION: STS-73 -- U.S. MICROGRAVITY LABORATORY-2

VEHICLE: Columbia/OV-102
LOCATION: Pad 39B
LAUNCH DATE/TIME: Oct. 20 at 9:50 a.m. (EDT)
LAUNCH WINDOW: 2 hours, 30 minutes
TARGET KSC LANDING DATE/TIME: Nov. 5 at 6:45 a.m. (EST)
MISSION DURATION: 15 days, 21 hours, 55 minutes
CREW SIZE: 7
ORBITAL ALTITUDE and INCLINATION: 172 statute miles/39 degrees

NOTE: Following Sunday’s launch scrub of mission STS-73 at T-5 minutes due to low clouds and rain, the next launch attempt has now been reset for Friday, Oct. 20. (The no-earlier-than date of Thursday, Oct. 19 is now unavailable due to the Atlas rocket 24-hour launch delay.) Today, Columbia’s countdown remains at the T-11 hour hold. The clock will begin counting again at 7:30 p.m. Thursday, for a scheduled T-0 at 9:50 a.m. on Friday. The launch window extends for 2 1/2 hours. (The available launch period extends until 1:30 p.m. Friday and could be utilized if a decision is made to delay crew entry into the orbiter.)

No technical issues or concerns are being discussed by the mission management team or by NASA engineers at pad 39B. (Mission managers will hold a standard launch minus one day meeting at 11:30 a.m. Thursday at KSC to formalize Friday’s launch attempt.)

At this time, final vehicle and facility close-outs are continuing. Final mid-deck payload loading operations will begin tomorrow. The onboard cryogenic storage tanks have been replenished and the orbiter mid-body umbilical unit retracted into the fixed service structure.

The rotating service structure will be retracted to launch position at about 2 p.m. tomorrow, pending weather. Loading of the external tank with cryogenic propellants is scheduled to begin at about 1:30 a.m. Friday.

Air Force weather forecasters are currently indicating an 70 percent probability of weather prohibiting launch on Friday. A stationary front and upper level low pressure system in south Florida are producing extensive clouds, wind and rain over the southern half of the state. An approaching cold front is expected to move through the KSC area late Friday or Saturday. There is less than a 10 percent chance of weather violating tanking constraints during tanking operations early Friday morning.

During Friday’s launch window, the winds at Pad 39B are expected to be from the east at 15-20 knots; temperature 78 degrees F; visibility 7 miles; humidity 91 percent; and clouds broken at 3,500 feet, 10,000 feet and 25,000 feet. The 24-hour-delay forecast reveals slightly better conditions and a 60 percent chance of violation.

The STS-73 crew have remained at KSC since Sunday’s launch attempt. Today they are reviewing their flight plans.

NOTE: For additional details regarding STS-73 countdown milestones, please refer to KSC Release No. 99-95.

SUMMARY OF BUILT-IN HOLDS FOR STS-73 (Run 3)

T-TIME LENGTH OF HOLD HOLD BEGINS HOLD ENDS
T-11 hours 7:30 p.m. Thursday
T-6 hours 1 hour 12:30 a.m. Friday 1:30 a.m. Friday
T-3 hours 2 hours 4:30 a.m. Friday 6:30 a.m. Friday
T-20 minutes 10 minutes 9:10 a.m. Friday 9:20 a.m. Friday
T-9 minutes 10 minutes 9:31 a.m. Friday 9:41 a.m. Friday

CREW FOR MISSION STS-73

Ken Bowersox Commander (CDR) Red Team
Kent Rominger Pilot (PLT) Red Team
Catherine Coleman Mission Specialist (MS1) Blue Team
Michael Lopez-Alegria Mission Specialist (MS2) Blue Team
Kathryn Thornton Mission Specialist (MS3) Red Team
Fred Leslie Payload Specialist (PS1) Blue Team
Albert Sacco Payload Specialist (PS2) Red Team

SUMMARY OF STS-73 LAUNCH DAY CREW ACTIVITIES

Thursday, Oct. 19

7:00 p.m. Wake up (Blue Team)
7:30 p.m. Breakfast (Blue Team)

Friday, Oct. 20

12:30 a.m. Lunch (Blue Team)
4:00 a.m. Wake up (Red Team)
* 5:15 a.m. Breakfast/Dinner and Crew Photo
5:45 a.m. Weather briefing (CDR, PLT, MS2)
5:45 a.m. Don launch and entry suits (MS1, MS3, PS1, PS2)
5:55 a.m. Don launch and entry suits (CDR, PLT, MS2)
* 6:15 a.m. Crew suiting photo
* 6:25 a.m. Depart for Launch Pad 39B
* 6:55 a.m. Arrive at white room and begin orbiter ingress
* 8:10 a.m. Close crew hatch
* 9:50 a.m. Launch

* Televised events (times may vary slightly)
All times Eastern

 

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